Proto-pasta Iridescent Ice Clear HTPLA, 2.85mm 500g Prints like standard PLA but with better than petabs temperature resistance after annealing. Comes on fully corrugated recyclable spool with standard dimension Irridescent ice is Clear in color with very little Yellow, slight irridescence in direct Sunlight We recommend printing this material at 190c-230c. No heated bed is required but may improve printing some geometry Temperature resistance of up to 140C is achieved by annealing after printing in an oven at 60c-110c Designed and manufactured in the USA with quality and customer service as a top priorities. Usa sourced packaging and labor